Suit yourself, but I don't know what you mean by "confirm the FINRA data." Garbage in, garbage out, but I guess you can still find someone to "confirm" it. Here are a couple of good explanations, along the lines of what many other people who aren't "beginners" have posted all over IHub:
Again, I'm not saying that some market makers don't naked short stocks on behalf of their customers. It can and does happen... but no one should rely on the intraday "short volume" numbers as proof of anything.
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